113321200221 has 6 divisors (see below), whose sum is σ = 163686178110. Its totient is φ = 75547466808.

The previous prime is 113321200189. The next prime is 113321200241. The reversal of 113321200221 is 122002123311.

It can be written as a sum of positive squares in only one way, i.e., 76557356100 + 36763844121 = 276690^2 + 191739^2 .

It is not a de Polignac number, because 113321200221 - 2⁵ = 113321200189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113321200194 and 113321200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113321200241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6295622226 + ... + 6295622243.

It is an arithmetic number, because the mean of its divisors is an integer number (27281029685).

Almost surely, 2^113321200221 is an apocalyptic number.

It is an amenable number.

113321200221 is a deficient number, since it is larger than the sum of its proper divisors (50364977889).

113321200221 is a wasteful number, since it uses less digits than its factorization.

113321200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12591244475 (or 12591244472 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 113321200221 its reverse (122002123311), we get a palindrome (235323323532).

The spelling of 113321200221 in words is "one hundred thirteen billion, three hundred twenty-one million, two hundred thousand, two hundred twenty-one".